1,250 W Converters and Battery Chargers for Extreme Environmental Conditions

cb3700-webSchaefer, Inc. introduces the C3700 series of 1,250 Watt DC-DC and AC-DC converter modules and battery charger. Utilizing industrial grade components, the compact and robust 6U design provides a highly efficient, space-saving solution for the most extreme environments in industries such as rail and transit for railway controls, communications equipment, and beyond (onboard and wayside), military applications, transportation, alternative energy applications, and process control systems.

The ultra-high efficient C3700 series delivers up to 1,250W of power and offers nine standard DC input voltage ranges from 18 VDC up to 640 VDC. AC input options are single-phase 115 VAC or 230 VAC (with or without PFC) or three-phase inputs of 3×200, 3×400 and 3x480VAC. Single outputs are available in twelve standard ranges encompassing 5VDC-400VDC. All outputs are adjustable and fully regulated to 0.2 percent or better (load) and 0.1 percent (line).

The C3700 series has comprehensive protection circuitry and efficiencies are up to 95 percent. Featuring natural convection cooling and a standard operating temperature range of –20°C to 75°C (derate 2.5 percent/°C from 55°C), with an option for -40°C to 75°C. DC-DC and AC-DC models have remote sense capability. Options include decoupling diodes for parallel / redundant operation, further mechanical ruggedization, inhibit, Power Fail / DC-OK alarms, system reset and programming/monitoring functions.